Linux Mint 20.1 | NextCloud via Snap and need to store on External USB SSD
Mount Options were adjusted based on trying to fix permission issue error via other posts. I gave www-data permissions instead of user 1000 (only user on system) . Also using /mnt instead of /media as this created the 0770 issue.
nosuid,nodev,nofail,x-gvfs-show,users,uid=33,gid=33,dmask=002,fmask=113,nobootwait
/mnt/usb-SABRENT_DISK00_DB98765432146-0:0-part5
really thought adding user 33 ( www-data ) would do the trick.